| Customization: | Available |
|---|---|
| Customized: | Customized |
| Standard: | API |
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| HENGJI BIT SPECIFICATION | |
| Bit Size | 8 3/4 |
| IADC Code | 517 |
| Series | HR |
| Tooth type | TCI/tungsten carbide insert |
| Connection | 2 7/8 API REG PIN |
| Bearing | rubber sealed bearing |
| Nozzle | three jet nozzles |
| Rotary Speed(rpm) | 140~60 |
| Weight on Bit(KN/MM) | 0.35~1.0 |
| Application | water well,oil well,HDD,exploration,etc |
| Popular models | |
| size | IADC CODE |
| 4 1/2''(114.3mm) | 417 437 517 537 637 |
| 4 3/4''(120.7mm) | 417 437 517 537 637 |
| 5 7/8''(149mm) | 417 437 517 537 637 |
| 6''(152mm) | 417 437 517 537 637 737 |
| 6 1/2''(165mm) | 417 437 517 537 617 627 637 737 |
| 7 1/2''(190mm) | 417 437 517 537 617 627 637 737 |
| 7 7/8''(200mm) | 417 437 517 537 617 627 637 737 837 |
| 8 1/2''(215.9mm) | 417 437 517 537 617 627 637 737 837 |
| 8 3/4''(222.3mm) | 417 437 517 537 617 627 637 737 837 |
| 9 5/8''(244.5mm) | 417 437 517 537 617 627 637 737 837 |
| 9 7/8''(250.8mm) | 417 437 517 537 617 627 637 737 837 |
| 11 5/8''(295.3mm) | 417 437 517 537 617 627 637 737 837 |
| 12 1/4''(311.1mm) | 417 437 517 537 617 627 637 737 837 |
| 14 3/4''(374.7mm) | 417 437 517 537 617 627 637 737 837 |
| 15 1/2''(393.7mm) | 417 437 517 537 617 627 637 737 837 |
| 17 1/2''(444.5mm) | 417 437 517 537 617 637 |
| 20''(508mm) | 437 517 537 637 |
| 22''(558.8mm) | 437 517 537 637 |
| 24''(509.6mm) | 437 517 537 |
| IADC | WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
| 114/116/117 | 0.3~0.75 | 180~60 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
| 124/126/127 | 0.3~0.85 | 180~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 134/135/136/137 | 0.3~0.95 | 150~60 | Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 214/215/216/217 | 0.35~0.95 | 150~60 | Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 227 | 0.35~0.95 | 150~50 | Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. |
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| IADC | WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
| 417/437/ 447/415/435 |
0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc. |
| 517/527/515 | 0.35~1.0 | 140~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 537/547/535 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. |
| 617/615 | 0.45~1.1 | 90~50 | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
| 637/635 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
| Packaging |
| Wood Box Fumigation Tray if necessary Other special package can be applied according to customer's need |
| Delivery |
| Prepared to deliver within 1 week, if in stock Depends on order quantity, when out of stock Transportation:By sea or air |
| Company Information |
| HENGJI BIT: There are full types of drill bits for your choosing in Hengji . Include TCI tricone bit,steel tooth tricone bit,single roller cone bit,pdc bit, hole opener,drag bit, etc. Our bits are exported to global 58 countries with good quality drill bits, we are the approved drill bits manufacturer and supplier for famous oil gas companies.As a good reputation OEM supplier, we are also a famous OEM manufacturer for famous companies. ISO9001 & SGS Certified drill manufacturer, we are proud to bring you top-quality drill bits at good prices. Door to Door delivery service is available too. Send us a mail to get the best price now. |
| Main products tricone bit(mill tooth and tungsten carbide insert tricone bit) PDC bit(matrix body and steel body PDC bit) hole opener(HDD rock reamer,barrel reamer,etc) drag bit(step drag bit,PDC drag bit,chevron drag bit,etc) accessories(single cone,bit breaker,nozzle ,etc) |
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